| Name | Meaning | Gender | Origin |
|---|
| Heba | gift from God | Unisex | |
| Hiawatha | he makes rivers | Male | From |
| Holmes | From the river island
| Male | English |
| Hudson | Hugh's son | Male | English |
| Hurley | after the skateboard brand | Male | Irish |
| Hydra | | Unisex | Hebrew |
| Idun | Viking mythology: the goddess of youth | Unisex | |
| Inari | from Japanese mythology, deity of fertility, rice, agriculture, foxes, industry, and worldly success | Unisex | |
| India | Of India | Female | English |
| Indra | God of rain and thunder | Female | Sanskrit |
| Io | pronounced: Ee-Oh | Female | Greek |
| Iris | rainbow, a play of colours | Female | |
| Irving | handsome, fair | Male | Scottish |
| Irwin | boar friend | Male | English |
| Isela | | Unisex | Hebrew |
| Isis | throne | Female | Egyptian |
| Ix Chel | Maya mythology: the goddess of the moon | Unisex | |
| Jack | after the Georgetown University mascot, Jack the Bulldog | Male | English |
| Jack | From John - God's gracious gift | Male | English |
| Jacques | supplanter | Male | |
| Jade | Jewel. Courageous and adoring.
| Female | Spanish |
| Jafar | little stream | Unisex | |
| Jaromir | Spring, Favor | Unisex | Czechoslovakian |
| Jarred | Descendant | Unisex | English |
| Jennifer | white shadow, white wave | Female | Cornish |